Does Sage X3 support MFA in Intranet network environment?
I know Sage X3 could tentatively support MFA by moving the authentication work to OAuth2 token from major authentication services like Google Workplace / Microsoft Azure (Graph API) but on a condition Sage X3 must be exposed to public Internet with HTTPS for the two-way communication for authorized OAuth2 provisioning.
Look into Cloudflare Tunnel. You can set this up to work with Azure MFA or their built-in email MFA.
https://www.youtube.com/watch?v=ZvIdFs3M5ic&t=1295s&pp=ygUVQ2xvdWRmbGFyZSB2cG4ga2lsbGVy